[LUCENE-6625] Potential null pointer exception

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 6.0
• Fix Version/s: 6.0
• Component/s: modules/queryparser
• Labels: github-pullrequest
• Lucene Fields: New, Patch Available
• Assignee: Unassigned
• Reporter: Rishabh Patel
• Created: 27/Jun/15 04:01
• Updated: 28/Aug/22 14:37

Description

In the file GroupQueryNode.java, there are several calls to getChild() and getChildren() whose results could be null. Further operations on them would lead to null pointer exceptions.

Fix by checking for null